胆固醇模式与多巴胺药物相关,在帕金森病中结步态
Victor S Hvingelby1, Miriam Højholt Terkelsen1, Erik L Johnsen2,3
1Department of Clinical Medicine-Department of Nuclear Medicine and PET Center, Aarhus University, 8000 Aarhus, Denmark.
Brain : a journal of neurology
|June 13, 2025
概括
帕金森病的步态问题,如步态结 (FoG),与控制运动的大脑区域胆固醇活性降低有关. 这项研究强调了胆固醇系统在药物治疗期间对FoG的作用.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 运动障碍 运动障碍
背景情况:
- 步行问题,包括步行结 (FoG) 和跌倒,在帕金森病 (PD) 中很常见,随着病情的进展而恶化.
- 与PD相关的行走障碍的潜在病理生理学仍然不完全理解.
- 预突触胆固醇终端密度是调查PD病理生理学的潜在标志物.
研究的目的:
- 为了研究胆固醇和代谢大脑活动与帕金森病中的步态障碍之间的关系.
- 为了将18F-FEOBV (胆固醇标记物) 和18F-FDG (代谢标记物) 的空间共变网络与步态结 (FoG) 和其他步态测量相关联.
- 探索在PD患者中胆固醇系统功能和FOG之间的潜在因果关系.
主要方法:
- 使用18F-FEOBV和18F-FDG的正子发射断层扫描 (PET) 在14名患有FoG的PD患者身上进行.
- 空间共变网络是使用主要组件分析 (PCA) 来得出的.
- 个人网络表达与ON-medication FoG (ON-FoG) 和下半身和步态 (LBG) UPDRS得分相关联,使用家用加速度计数据.
主要成果:
- 一个特定的18F-FEOBV结合模式与ON-FoG (R2=0.46975,p=0.045) 和LBG症状 (R2=0.78591,p=0.0077) 有显著的相关性.
- 在 thalamus,海马体,条形状体,前环状体和脑干 (大脑半脑运动区域) 中较低的胆固醇活性与更糟糕的ON-FoG和步态有关.
- 在18F-FEOBV模式和OFF-药物治疗FoG (OFF-FoG) 或整体疾病持续时间/进展之间没有发现显著的相关性. 18F-FDG与步态评估没有相关性,除了LBG症状的一个子集.
结论:
- 大脑干发动机区域的胆能功能减少与帕金森病中ON药物治疗FoG的客观测量相关.
- 这些发现表明,胆固醇系统在与多巴胺药物相关的FOG的发展中可能起因作用.
- 这项研究支持胆固醇系统参与帕金森病患者的FoG发生,特别是在使用ON药物时.
相关概念视频
Parkinson's Disease: Treatment
239
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
239
Parkinson's Disease: Overview
499
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
499
Neural Regulation
39.2K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.2K
Indirect-Acting Cholinergic Agonists: Pharmacological Actions
639
Indirect-acting cholinergic agonists, also known as anticholinesterases, exert their pharmacological effects by enhancing cholinergic transmission in various body parts, including the neuromuscular junction, autonomic cholinergic synapses, and the brain.
At the neuromuscular junction, these agents work by inhibiting the breakdown of acetylcholine, allowing it to remain bound to the receptor and bind to nearby receptors. This process leads to repetitive firing of the endplate, causing muscle...
At the neuromuscular junction, these agents work by inhibiting the breakdown of acetylcholine, allowing it to remain bound to the receptor and bind to nearby receptors. This process leads to repetitive firing of the endplate, causing muscle...
639
Direct-Acting Cholinergic Agonists: Pharmacokinetics
1.1K
Direct-acting cholinergic agonists, such as synthetic choline esters and naturally occurring alkaloids, exert their effects by enhancing the actions of acetylcholine and stimulating the parasympathetic nervous system. Synthetic choline esters share structural similarities with acetylcholine. For example, they have a positively charged quaternary ammonium or onium group, contributing to their hydrophilic characteristics. As a result, they are poorly absorbed in the body through oral...
1.1K


